Answer:
To find the area of a triangle, multiply the base by the height, and then divide by 2. The division by 2 comes from the fact that a parallelogram can be divided into 2 triangles. For example, in the diagram to the left, the area of the parallelogram.
The amount she had after the pants is $37.50
the you take $37.50 divide it by 3 and you get $12.50 so each shirt would cost $12.50
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